[webkit-reviews] review requested: [Bug 36083] REGRESSION (r55772-r55834): Crash in JavaScriptCore RegExp code on PowerPC : [Attachment 50848] The patch

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Mar 16 15:55:29 PDT 2010


Gavin Barraclough <barraclough at apple.com> has asked  for review:
Bug 36083: REGRESSION (r55772-r55834): Crash in JavaScriptCore RegExp code on
PowerPC
https://bugs.webkit.org/show_bug.cgi?id=36083

Attachment 50848: The patch
https://bugs.webkit.org/attachment.cgi?id=50848&action=review

------- Additional Comments from Gavin Barraclough <barraclough at apple.com>
The problem is a bug in our port of PCRE - that a read may take place from the
first character in an empty string.  For the time being, revert to using a
valid pointer in the data segment rather than an invalid non-null pointer into
the zero-page for the empty string's data pointer.  A better fix for this will
be to remove PCRE.


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